Just when sleep starts feeling like it’s finding a rhythm, six months can throw it sideways again. The good news: this one is usually shorter and easier to explain than the 4-month shift.

What’s usually driving it

The 6-month regression is typically tied to one or more of: rolling (practicing a new physical skill even in sleep), teething discomfort, or a nap transition as the day’s rhythm starts to shift. Unlike the 4-month change, this isn’t a permanent restructuring of sleep architecture — it’s usually a temporary disruption layered on top of a skill or discomfort.

How long it tends to last

Most versions of the 6-month regression resolve within two to three weeks. If it’s dragging on much longer than that, it’s worth checking in with your pediatrician to rule out other causes — but the short timeline is the norm, not the exception.

Regression or something else?

Ask the same two questions every time: has this lasted more than two weeks, and is there an obvious developmental leap or new skill in progress (rolling, a new tooth)? If yes to both, ride it out with consistency rather than overhauling the whole routine.

What helps

About Life After 4

Written from real experience navigating months 4–12, cross-checked against current pediatric guidance where relevant. This is organizational and emotional support, not medical advice — always follow your pediatrician's guidance for your specific child.

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